hathiway



,(No MOQGI.) 2ShegtS-Sheet 1.

G.-M. .HATHAWAY. OAR'STARTER AND BRAKEL' No. 291594. 4 'Paitented Jan,8,1884.

afoziyim 1(N0 Modl.) 2 Shets-Sheet 2.

G. M.-HATHAW AY'. GAR STARTER AND BRAKE. v -No."291,594. Patented Jan 8,1884.

UNITED STATES PATENT @rrrcn.

GEORGE M. HATHAWAY, OF NEWV YORK, N. Y., ASSIGNOR OF ONE-HALF TO CHARLESC. KEELER, OF SAME PLACE.

CAR STARjTER AND BRAKE.

Application filed June 7, 1883.

To aZZ whom it may concern.-

Be it known that I, Gnonen M. HATHANVAY,

a citizen of the United States, residing at New York, in the county ofNew York and State 5 of New York, have invented certain new and usefulImprovements in Car Starters and Brakes,of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to certain improve ments in car starters andbrakes of that class in whichthe lost motion due to the checking of thecar is stored up and utilized to give the initial movement to the carwhen again put in 15 motion, in order to assist or relieve the horses inovercoming the inertia at starting, as more l'ullyhereinatter specified;and it has for its object to provide certain improved means wherebythese purposes may be eilected, as 2() more fully hereinafter specified.

' The above-mentioned objects I attain by means illustrated in theaccompanying drawings, in which- Figure 1 represents a view of thebottom of 2 5 a car, showing my invention applied thereto; Fig. 2, alongitudinal vertical section of the same, showing my invention; Fig. 3,a view partly in longitudinal section, showing the axle. to which myinvention is applied, detached; Fig. 4, a detached side elevation of aportion of my starting mechanism; Fig. 5, a detached view offriction-wheel employed in connection with my starting mechanism; Fig.6, a detached perspective view of a ratcheted 3 5 sleeve employed inconnection with my starting mechanism; and Fig. 7, a perspective view,showing the clutch and releasing devices employed in connection with thestarting mechanism.

The letter A indicates the truck or bottom of a car of ordinary or anyapproved construction; B, the forward axle, which is of the usualconstruction and journaled in the ordinary boxes, and O the commonflanged wheels. The letter D indicates the rear axle, which is enlargedfor a portion of its length between the two ends, as indicated by theletter 13. i The said axle is journaled in the usual manner in boxes ateach end, and has mounted:

wheels of the ordinary construction. The

said enlarged portion of the axle is provided Patent No. 291,594., datedJanuary 8, 1884.

(NomodcL) l with right and left handed screw-grooves F and a collar, G,at one end, against which abuts one end of a spiral spring, ,H, whichsurrounds the enlarged portion of the shaft, the other end abuttingagainst the end of a hollow boss on the lever H, through which theenlarged portion of the shaft passes. The ends of the spring,respectively, are secured to the collar and the boss, as shown. WVithinthe boss is located loosely a sleeve, I, through which the enlargedportion of the shaft passes, the sleeve being ratch eted at one end, andadapted to en gage suitable ratchets on the inside of the boss when theshaft travels in one direction, and slip them. when traveling in"the'opposite direction,for the purpose hereinafter specified. The saidsleeve is providedwith oblique ribs K internally, which are adapted totravel in one of the screw-grooves in the enlarged portion of the shaft,and move it in the proper direction to compress the spring when the caris stopped, and thus store up the lost power.

The letter L indicates a beveled-edge friction-wheel, which is mountedloosely upon the enlarged portion of the axle, and the hub of which setsagainst the plain edge of the sleeve I, mentioned, so as to hold it inplace. This wheel is embraced by two bent levers, M N, having beveledgrooves corresponding to the bevel of the friction-wheel, the saidlevers being pivoted at one end to one end of the lever H, beforementioned, the other end of said levers M N being connected to thecross-piece of a pin, R, passing through the opposite end of the saidbefore-mentioned lever H, by means of links It, the said pin beingprovided with a crank, S, to which the rear end of a rod, T, is secured,the forward end of said rod being secured to the lower end of a lever,U, extending upward through a slot in the front platform,s0 as to beunder the control of the driver. The'lever H is provided with aprojection or lug, V, having an anti-friction roller, W, which travelsbetween transverse ways X and holds the lovers in position as the partsare moved longitudinally upon the rear axle.

The operation'of my invention will be understbod in connection with theabove description, and is as follows: While the car is in motion therear shaft travels independent of thestarting devices; but when the caris tobe stopped the driver draws the lever U back, tightening theclamping-levers upon the friction-wheel. This holds said wheel fromrotation, and causes the same to travel along the shaft by reason of itsinclined lugs traveling in one of the screw-grooves in the enlargedportion of the shaft before mentioned. This causes the boss on the leverH to compress the spring to an extentvarying with the speed and momentumof the car, and operates as a brake to stop the same.

This device, it is evident, may also be applied as a brake in a similarmanner when it is-desired to slacken the speed of the car on downgrades,or for other purposes.

When the car is to be started, the lever U is released, releasing theclamping-levers and the friction-wheel, permitting the same to travelwith the shaft. The ratcheted wheel, which previously slipped, is thenengaged by the ratchets in the boss, holding it against roiation,causing the inclined lugs in said boss to travel in the otherscrew-grooves in the shaft, so as to rotate the same in proper directionto start the ear.

Havingthus described my invention, what I claim is- 1. In a car-starter,the combination, with the axle having enlarged portion and right andleft hand screw-grooves, of the lever provided with the rateheted bosscontaining a ratcheted sleeve having oblique internal lugs traveling inone of the grooves, a friction wheel having oppositely-oblique lugstraveling in the other groove, the spiral mounted 011 the sliaft,andmechanism for clamping the friction-wheel, substantially as and for thepurposes specified.

2. The combination, with the enlarged right and left hand grooved axle,of the spiral spring, the lever provided with an internally-ratchetedboss, the rateheted sleeve provided with internal oblique lugs, thefriction-wheel pro vided with internal oblique lugs, the clamp ingleversand their connecting -links the crank-pin, and the rod andoperatingdever, all arranged substantially as and for the purposesspecified.

3. The combination, with the right and left hand threaded shaft. of thesliding lever having a projection provided with an anti-friction wheel,the transverse ways between which said wheel moves, and the mechanismfor clamping and moving the lever, substantially as specified. I

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE M. HATHAW'AY.

Witnesses:

ED OND RICHARD, F. M. MAYHEW.

